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    <script>
        function Vue(){
            this._init(options)
        }

        // ==> 
        // this._init(options)
        initLifecycle(vm)
        initEvents(vm)
        initRender(vm)
        // ==>beforeCreate
        initInjections(vm)
        initState(vm)  // ==>  props/data/methods/watch/computed 
        initProvide(vm)
        // ==> created

        // ==> initData(vm)
    </script>
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